TononixOS/ubports_kernel_google_msm
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Merge branches 'iommu/fixes', 'arm/omap' and 'x86/amd' into next

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Conflicts:
	drivers/pci/hotplug/acpiphp_glue.c
This commit is contained in:
Joerg Roedel
2012-01-09 13:04:05 +01:00
parent 805a6af8db 1a36ea815a 1456e9d2c4
commit 00fb5430f5
39 changed files with 2787 additions and 315 deletions
Download Patch File Download Diff File Expand all files Collapse all files

90
drivers/pci/ats.c
View File

@@ -175,21 +175,22 @@ int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
u32 max_requests;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
if (!pos)
return -EINVAL;
pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF, &status);
if ((control & PCI_PRI_ENABLE) || !(status & PCI_PRI_STATUS_STOPPED))
pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
if ((control & PCI_PRI_CTRL_ENABLE) ||
!(status & PCI_PRI_STATUS_STOPPED))
return -EBUSY;
pci_read_config_dword(pdev, pos + PCI_PRI_MAX_REQ_OFF, &max_requests);
pci_read_config_dword(pdev, pos + PCI_PRI_MAX_REQ, &max_requests);
reqs = min(max_requests, reqs);
pci_write_config_dword(pdev, pos + PCI_PRI_ALLOC_REQ_OFF, reqs);
pci_write_config_dword(pdev, pos + PCI_PRI_ALLOC_REQ, reqs);
control |= PCI_PRI_ENABLE;
pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
control |= PCI_PRI_CTRL_ENABLE;
pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
return 0;
}
@@ -206,13 +207,13 @@ void pci_disable_pri(struct pci_dev *pdev)
u16 control;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
if (!pos)
return;
pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
control &= ~PCI_PRI_ENABLE;
pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
control &= ~PCI_PRI_CTRL_ENABLE;
pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
}
EXPORT_SYMBOL_GPL(pci_disable_pri);
@@ -227,13 +228,13 @@ bool pci_pri_enabled(struct pci_dev *pdev)
u16 control;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
if (!pos)
return false;
pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
return (control & PCI_PRI_ENABLE) ? true : false;
return (control & PCI_PRI_CTRL_ENABLE) ? true : false;
}
EXPORT_SYMBOL_GPL(pci_pri_enabled);
@@ -249,17 +250,17 @@ int pci_reset_pri(struct pci_dev *pdev)
u16 control;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
if (!pos)
return -EINVAL;
pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
if (control & PCI_PRI_ENABLE)
pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
if (control & PCI_PRI_CTRL_ENABLE)
return -EBUSY;
control |= PCI_PRI_RESET;
control |= PCI_PRI_CTRL_RESET;
pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
return 0;
}
@@ -282,14 +283,14 @@ bool pci_pri_stopped(struct pci_dev *pdev)
u16 control, status;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
if (!pos)
return true;
pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF, &status);
pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
if (control & PCI_PRI_ENABLE)
if (control & PCI_PRI_CTRL_ENABLE)
return false;
return (status & PCI_PRI_STATUS_STOPPED) ? true : false;
@@ -311,15 +312,15 @@ int pci_pri_status(struct pci_dev *pdev)
u16 status, control;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
if (!pos)
return -EINVAL;
pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF, &status);
pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
/* Stopped bit is undefined when enable == 1, so clear it */
if (control & PCI_PRI_ENABLE)
if (control & PCI_PRI_CTRL_ENABLE)
status &= ~PCI_PRI_STATUS_STOPPED;
return status;
@@ -342,25 +343,25 @@ int pci_enable_pasid(struct pci_dev *pdev, int features)
u16 control, supported;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
if (!pos)
return -EINVAL;
pci_read_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, &control);
pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
pci_read_config_word(pdev, pos + PCI_PASID_CTRL, &control);
pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
if (!(supported & PCI_PASID_ENABLE))
if (control & PCI_PASID_CTRL_ENABLE)
return -EINVAL;
supported &= PCI_PASID_EXEC | PCI_PASID_PRIV;
supported &= PCI_PASID_CAP_EXEC | PCI_PASID_CAP_PRIV;
/* User wants to enable anything unsupported? */
if ((supported & features) != features)
return -EINVAL;
control = PCI_PASID_ENABLE | features;
control = PCI_PASID_CTRL_ENABLE | features;
pci_write_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, control);
pci_write_config_word(pdev, pos + PCI_PASID_CTRL, control);
return 0;
}
@@ -376,11 +377,11 @@ void pci_disable_pasid(struct pci_dev *pdev)
u16 control = 0;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
if (!pos)
return;
pci_write_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, control);
pci_write_config_word(pdev, pos + PCI_PASID_CTRL, control);
}
EXPORT_SYMBOL_GPL(pci_disable_pasid);
@@ -391,22 +392,21 @@ EXPORT_SYMBOL_GPL(pci_disable_pasid);
* Returns a negative value when no PASI capability is present.
* Otherwise is returns a bitmask with supported features. Current
* features reported are:
* PCI_PASID_ENABLE - PASID capability can be enabled
* PCI_PASID_EXEC - Execute permission supported
* PCI_PASID_PRIV - Priviledged mode supported
* PCI_PASID_CAP_EXEC - Execute permission supported
* PCI_PASID_CAP_PRIV - Priviledged mode supported
*/
int pci_pasid_features(struct pci_dev *pdev)
{
u16 supported;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
if (!pos)
return -EINVAL;
pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
supported &= PCI_PASID_ENABLE | PCI_PASID_EXEC | PCI_PASID_PRIV;
supported &= PCI_PASID_CAP_EXEC | PCI_PASID_CAP_PRIV;
return supported;
}
@@ -426,11 +426,11 @@ int pci_max_pasids(struct pci_dev *pdev)
u16 supported;
int pos;
pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
if (!pos)
return -EINVAL;
pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
supported = (supported & PASID_NUMBER_MASK) >> PASID_NUMBER_SHIFT;

1
drivers/pci/hotplug/pciehp.h
View File

@@ -45,7 +45,6 @@ extern int pciehp_poll_time;
extern int pciehp_debug;
extern int pciehp_force;
extern struct workqueue_struct *pciehp_wq;
extern struct workqueue_struct *pciehp_ordered_wq;
#define dbg(format, arg...) \
do { \

11
drivers/pci/hotplug/pciehp_core.c
View File

@@ -43,7 +43,6 @@ int pciehp_poll_mode;
int pciehp_poll_time;
int pciehp_force;
struct workqueue_struct *pciehp_wq;
struct workqueue_struct *pciehp_ordered_wq;
#define DRIVER_VERSION "0.4"
#define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -345,18 +344,11 @@ static int __init pcied_init(void)
if (!pciehp_wq)
return -ENOMEM;
pciehp_ordered_wq = alloc_ordered_workqueue("pciehp_ordered", 0);
if (!pciehp_ordered_wq) {
destroy_workqueue(pciehp_wq);
return -ENOMEM;
}
pciehp_firmware_init();
retval = pcie_port_service_register(&hpdriver_portdrv);
dbg("pcie_port_service_register = %d\n", retval);
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
if (retval) {
destroy_workqueue(pciehp_ordered_wq);
destroy_workqueue(pciehp_wq);
dbg("Failure to register service\n");
}
@@ -366,9 +358,8 @@ static int __init pcied_init(void)
static void __exit pcied_cleanup(void)
{
dbg("unload_pciehpd()\n");
destroy_workqueue(pciehp_ordered_wq);
destroy_workqueue(pciehp_wq);
pcie_port_service_unregister(&hpdriver_portdrv);
destroy_workqueue(pciehp_wq);
info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
}

4
drivers/pci/hotplug/pciehp_ctrl.c
View File

@@ -344,7 +344,7 @@ void pciehp_queue_pushbutton_work(struct work_struct *work)
kfree(info);
goto out;
}
queue_work(pciehp_ordered_wq, &info->work);
queue_work(pciehp_wq, &info->work);
out:
mutex_unlock(&p_slot->lock);
}
@@ -439,7 +439,7 @@ static void handle_surprise_event(struct slot *p_slot)
else
p_slot->state = POWERON_STATE;
queue_work(pciehp_ordered_wq, &info->work);
queue_work(pciehp_wq, &info->work);
}
static void interrupt_event_handler(struct work_struct *work)

1
drivers/pci/hotplug/pciehp_hpc.c
View File

@@ -806,7 +806,6 @@ static void pcie_cleanup_slot(struct controller *ctrl)
struct slot *slot = ctrl->slot;
cancel_delayed_work(&slot->work);
flush_workqueue(pciehp_wq);
flush_workqueue(pciehp_ordered_wq);
kfree(slot);
}

121
drivers/pci/msi.c
View File

@@ -323,6 +323,8 @@ static void free_msi_irqs(struct pci_dev *dev)
if (list_is_last(&entry->list, &dev->msi_list))
iounmap(entry->mask_base);
}
kobject_del(&entry->kobj);
kobject_put(&entry->kobj);
list_del(&entry->list);
kfree(entry);
}
@@ -403,6 +405,98 @@ void pci_restore_msi_state(struct pci_dev *dev)
}
EXPORT_SYMBOL_GPL(pci_restore_msi_state);
#define to_msi_attr(obj) container_of(obj, struct msi_attribute, attr)
#define to_msi_desc(obj) container_of(obj, struct msi_desc, kobj)
struct msi_attribute {
struct attribute attr;
ssize_t (*show)(struct msi_desc *entry, struct msi_attribute *attr,
char *buf);
ssize_t (*store)(struct msi_desc *entry, struct msi_attribute *attr,
const char *buf, size_t count);
};
static ssize_t show_msi_mode(struct msi_desc *entry, struct msi_attribute *atr,
char *buf)
{
return sprintf(buf, "%s\n", entry->msi_attrib.is_msix ? "msix" : "msi");
}
static ssize_t msi_irq_attr_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct msi_attribute *attribute = to_msi_attr(attr);
struct msi_desc *entry = to_msi_desc(kobj);
if (!attribute->show)
return -EIO;
return attribute->show(entry, attribute, buf);
}
static const struct sysfs_ops msi_irq_sysfs_ops = {
.show = msi_irq_attr_show,
};
static struct msi_attribute mode_attribute =
__ATTR(mode, S_IRUGO, show_msi_mode, NULL);
struct attribute *msi_irq_default_attrs[] = {
&mode_attribute.attr,
NULL
};
void msi_kobj_release(struct kobject *kobj)
{
struct msi_desc *entry = to_msi_desc(kobj);
pci_dev_put(entry->dev);
}
static struct kobj_type msi_irq_ktype = {
.release = msi_kobj_release,
.sysfs_ops = &msi_irq_sysfs_ops,
.default_attrs = msi_irq_default_attrs,
};
static int populate_msi_sysfs(struct pci_dev *pdev)
{
struct msi_desc *entry;
struct kobject *kobj;
int ret;
int count = 0;
pdev->msi_kset = kset_create_and_add("msi_irqs", NULL, &pdev->dev.kobj);
if (!pdev->msi_kset)
return -ENOMEM;
list_for_each_entry(entry, &pdev->msi_list, list) {
kobj = &entry->kobj;
kobj->kset = pdev->msi_kset;
pci_dev_get(pdev);
ret = kobject_init_and_add(kobj, &msi_irq_ktype, NULL,
"%u", entry->irq);
if (ret)
goto out_unroll;
count++;
}
return 0;
out_unroll:
list_for_each_entry(entry, &pdev->msi_list, list) {
if (!count)
break;
kobject_del(&entry->kobj);
kobject_put(&entry->kobj);
count--;
}
return ret;
}
/**
* msi_capability_init - configure device's MSI capability structure
* @dev: pointer to the pci_dev data structure of MSI device function
@@ -454,6 +548,13 @@ static int msi_capability_init(struct pci_dev *dev, int nvec)
return ret;
}
ret = populate_msi_sysfs(dev);
if (ret) {
msi_mask_irq(entry, mask, ~mask);
free_msi_irqs(dev);
return ret;
}
/* Set MSI enabled bits */
pci_intx_for_msi(dev, 0);
msi_set_enable(dev, pos, 1);
@@ -574,6 +675,12 @@ static int msix_capability_init(struct pci_dev *dev,
msix_program_entries(dev, entries);
ret = populate_msi_sysfs(dev);
if (ret) {
ret = 0;
goto error;
}
/* Set MSI-X enabled bits and unmask the function */
pci_intx_for_msi(dev, 0);
dev->msix_enabled = 1;
@@ -732,6 +839,8 @@ void pci_disable_msi(struct pci_dev *dev)
pci_msi_shutdown(dev);
free_msi_irqs(dev);
kset_unregister(dev->msi_kset);
dev->msi_kset = NULL;
}
EXPORT_SYMBOL(pci_disable_msi);
@@ -830,6 +939,8 @@ void pci_disable_msix(struct pci_dev *dev)
pci_msix_shutdown(dev);
free_msi_irqs(dev);
kset_unregister(dev->msi_kset);
dev->msi_kset = NULL;
}
EXPORT_SYMBOL(pci_disable_msix);
@@ -870,5 +981,15 @@ EXPORT_SYMBOL(pci_msi_enabled);
void pci_msi_init_pci_dev(struct pci_dev *dev)
{
int pos;
INIT_LIST_HEAD(&dev->msi_list);
/* Disable the msi hardware to avoid screaming interrupts
* during boot. This is the power on reset default so
* usually this should be a noop.
*/
pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
if (pos)
msi_set_enable(dev, pos, 0);
msix_set_enable(dev, 0);
}

13
drivers/pci/pci-acpi.c
View File

@@ -45,16 +45,20 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context)
{
struct pci_dev *pci_dev = context;
if (event == ACPI_NOTIFY_DEVICE_WAKE && pci_dev) {
if (event != ACPI_NOTIFY_DEVICE_WAKE || !pci_dev)
return;
if (!pci_dev->pm_cap || !pci_dev->pme_support
|| pci_check_pme_status(pci_dev)) {
if (pci_dev->pme_poll)
pci_dev->pme_poll = false;
pci_wakeup_event(pci_dev);
pci_check_pme_status(pci_dev);
pm_runtime_resume(&pci_dev->dev);
if (pci_dev->subordinate)
pci_pme_wakeup_bus(pci_dev->subordinate);
}
if (pci_dev->subordinate)
pci_pme_wakeup_bus(pci_dev->subordinate);
}
/**
@@ -395,7 +399,6 @@ static int __init acpi_pci_init(void)
if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
printk(KERN_INFO"ACPI FADT declares the system doesn't support PCIe ASPM, so disable it\n");
pcie_clear_aspm();
pcie_no_aspm();
}

58
drivers/pci/pcie/aspm.c
View File

@@ -68,7 +68,7 @@ struct pcie_link_state {
struct aspm_latency acceptable[8];
};
static int aspm_disabled, aspm_force, aspm_clear_state;
static int aspm_disabled, aspm_force;
static bool aspm_support_enabled = true;
static DEFINE_MUTEX(aspm_lock);
static LIST_HEAD(link_list);
@@ -500,9 +500,6 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
int pos;
u32 reg32;
if (aspm_clear_state)
return -EINVAL;
/*
* Some functions in a slot might not all be PCIe functions,
* very strange. Disable ASPM for the whole slot
@@ -574,9 +571,6 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
return;
if (aspm_disabled && !aspm_clear_state)
return;
/* VIA has a strange chipset, root port is under a bridge */
if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT &&
pdev->bus->self)
@@ -608,7 +602,7 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
* the BIOS's expectation, we'll do so once pci_enable_device() is
* called.
*/
if (aspm_policy != POLICY_POWERSAVE || aspm_clear_state) {
if (aspm_policy != POLICY_POWERSAVE) {
pcie_config_aspm_path(link);
pcie_set_clkpm(link, policy_to_clkpm_state(link));
}
@@ -649,8 +643,7 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev)
struct pci_dev *parent = pdev->bus->self;
struct pcie_link_state *link, *root, *parent_link;
if ((aspm_disabled && !aspm_clear_state) || !pci_is_pcie(pdev) ||
!parent || !parent->link_state)
if (!pci_is_pcie(pdev) || !parent || !parent->link_state)
return;
if ((parent->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
(parent->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
@@ -734,13 +727,18 @@ void pcie_aspm_powersave_config_link(struct pci_dev *pdev)
* pci_disable_link_state - disable pci device's link state, so the link will
* never enter specific states
*/
static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem)
static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem,
bool force)
{
struct pci_dev *parent = pdev->bus->self;
struct pcie_link_state *link;
if (aspm_disabled || !pci_is_pcie(pdev))
if (aspm_disabled && !force)
return;
if (!pci_is_pcie(pdev))
return;
if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)
parent = pdev;
@@ -768,16 +766,31 @@ static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem)
void pci_disable_link_state_locked(struct pci_dev *pdev, int state)
{
__pci_disable_link_state(pdev, state, false);
__pci_disable_link_state(pdev, state, false, false);
}
EXPORT_SYMBOL(pci_disable_link_state_locked);
void pci_disable_link_state(struct pci_dev *pdev, int state)
{
__pci_disable_link_state(pdev, state, true);
__pci_disable_link_state(pdev, state, true, false);
}
EXPORT_SYMBOL(pci_disable_link_state);
void pcie_clear_aspm(struct pci_bus *bus)
{
struct pci_dev *child;
/*
* Clear any ASPM setup that the firmware has carried out on this bus
*/
list_for_each_entry(child, &bus->devices, bus_list) {
__pci_disable_link_state(child, PCIE_LINK_STATE_L0S |
PCIE_LINK_STATE_L1 |
PCIE_LINK_STATE_CLKPM,
false, true);
}
}
static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
{
int i;
@@ -935,6 +948,7 @@ void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev)
static int __init pcie_aspm_disable(char *str)
{
if (!strcmp(str, "off")) {
aspm_policy = POLICY_DEFAULT;
aspm_disabled = 1;
aspm_support_enabled = false;
printk(KERN_INFO "PCIe ASPM is disabled\n");
@@ -947,16 +961,18 @@ static int __init pcie_aspm_disable(char *str)
__setup("pcie_aspm=", pcie_aspm_disable);
void pcie_clear_aspm(void)
{
if (!aspm_force)
aspm_clear_state = 1;
}
void pcie_no_aspm(void)
{
if (!aspm_force)
/*
* Disabling ASPM is intended to prevent the kernel from modifying
* existing hardware state, not to clear existing state. To that end:
* (a) set policy to POLICY_DEFAULT in order to avoid changing state
* (b) prevent userspace from changing policy
*/
if (!aspm_force) {
aspm_policy = POLICY_DEFAULT;
aspm_disabled = 1;
}
}
/**